Non-Rotating Telescopic Aluminum Tubing

Non-rotational aluminum tubing is U indented and will telescope but not turn. Manufactured to tight tolerances it is available in 1/2" thru 1-1/4" diameters in 1/8” increments. Tube assemblies are typically constructed using a round outside tube with inner non-rotational ones. Therefore a 1-1/4” non-rotational tube can telescope inside a 1-3/8” round tube.